RE: [xsl] problems with copying duplicate nodes

["Andrew Welch" <ajwelch@xxxxxxxxxxxxxxx>]

> I read quite a few of the earlier posts on this topic
> and tried to work out a solution but it aint working.
> Snippets of my code are shown below:
>
> input.xml
>
> <TABLE>
>     <TR>
>        <TD>Checking existence of Wood</TD>
>        <TR>
>           <TD>Found values for Wood</TD>
>           <TD> The values are x y z</TD>
>           <TD>Found values for Wood</TD>
>           <TD> The values are x y z</TD>
>        </TR>
>     </TR>
>     <TR>
>        <TD>Checking existence of Tree</TD>
>        <TR>
>           <TD>Found values for Tree</TD>
>           <TD> The values are a b c</TD>
>        </TR>
>     </TR>
> </TABLE>

Is that legal HTML?


> I want to eliminate the duplicate <TD>s inside TABLE
> /TR/TR whenever they occur. I tried two solutions but
> none of them eliminate the duplicate entries.

You basically want to key on the value of the <TD> and then only process
those <TD>'s that occur first in the key eg:

<xsl:key name="tds" match="TD" use="."/>

and then:

<xsl:template match="TD">
  <xsl:if test="generate-id() = generate-id(key('tds',.)[1])">
     ...

Check out David Pawson's FAQ:
http://www.dpawson.co.uk/xsl/sect2/N2696.html

cheers
andrew